A catheter has a distal assembly with at least one loop with ring electrodes. A single continuous puller wire for bidirectional deflection is pre-bent into two long portions and a U-shape bend therebetween. The U-shape bend is anchored at a distal end of a deflectable section which is reinforced by at least one washer having at least two holes, each hole axially aligned with a respective lumen in the deflectable section. Each hole is centered with a lumen so that each puller wire portion therethrough is straight and subjected to tensile force only. A proximal end of the support member is flattened and serrated to provide a better bonding to the distal end of the deflectable section.

Provided herein are methods for EEG monitoring of a patient, which includes: positioning an array comprising a plurality of EEG electrodes on the patient's head; recording, during a first time period, a first data set of EEG signals from a first set of spatial scalp locations; manipulating the array to record, during a second time period, a second data set of EEG signals from a second set of spatial locations including at least some spatial scalp locations that are different from the first set of spatial scalp locations; integrating the first and second data sets, thereby generating a combined data set with a higher spatial density; and processing the combined data set to determine EEG events.

Provided herein are methods for EEG monitoring of a patient, which includes: positioning an array comprising a plurality of EEG electrodes on the patient's head; recording, during a first time period, a first data set of EEG signals from a first set of spatial scalp locations; manipulating the array to record, during a second time period, a second data set of EEG signals from a second set of spatial locations including at least some spatial scalp locations that are different from the first set of spatial scalp locations; integrating the first and second data sets, thereby generating a combined data set with a higher spatial density; and processing the combined data set to determine EEG events.

In accordance with some embodiments, systems, apparatus, interfaces, methods, and articles of manufacture are provided for ascertaining aspects of a user, such as the users identity, competence, health, and state of mind. In various embodiments, data is captured about a user via a headset worn by the user. Based on the data, a determination may be made about an aspect of the user, and the user may accordingly be granted or denied access to a resource.

Arousal of a patient is enhanced and wakefulness modulated by neurostimulation. Bioelectrical activity of the nervous system of the patient is monitored and characteristics of the monitored bioelectrical activity associated with a state of reduced arousal and/or wakefulness are detected. In response to such characteristics, stimulation signals selected to arouse the patient are generated and supplied to stimulation transducers to stimulate a neural network of a patient associated with arousal.

Provided are a recording and/or stimulation neural electrode that is flexible and can be tightly attached to the brain surface, and shows no deterioration in adhesiveness even when embedded for a long period of time; and a method using such neural electrode. A neural electrode of the present invention includes an attaching part having at least: an insulating sheet whose one surface serves as an attaching surface to be attached to the brain surface; and a conductive wiring formed on a surface of the insulating sheet that is opposite to the attaching surface, wherein multi-point electrode parts of the conductive wiring are exposed from hole parts of the insulating sheet, and wherein the insulating sheet is an elastomer thin film having a thickness of 2 to 100 ?m, and the conductive wiring has a thickness of 10 ?m or smaller.

A stretchable device that includes: a stretchable substrate that includes: a main body portion having a first main surface and a second main surface facing the first main surface, and a projecting piece portion connected to the main body portion, the projecting piece portion having a third main surface continuous with the first main surface and a fourth main surface continuous with the second main surface and facing the third main surface; a stretchable wiring, wherein at least a part of the stretchable wiring is arranged on the first main surface of the main body portion of the stretchable substrate; and a bioelectrode arranged on the third main surface of the projecting piece portion of the stretchable substrate and electrically connected to the stretchable wiring.

A stretchable device that includes: a stretchable substrate that includes: a main body portion having a first main surface and a second main surface facing the first main surface, and a projecting piece portion connected to the main body portion, the projecting piece portion having a third main surface continuous with the first main surface and a fourth main surface continuous with the second main surface and facing the third main surface; a stretchable wiring, wherein at least a part of the stretchable wiring is arranged on the first main surface of the main body portion of the stretchable substrate; and a bioelectrode arranged on the third main surface of the projecting piece portion of the stretchable substrate and electrically connected to the stretchable wiring.

Device with an electrode arrangement with a plurality of electrodes for measuring electric signals on a face surface of a head of a user and behind an ear of the user; and with a carrier structure. The carrier structure at least partially defines a relative position of the electrodes to one another, and the carrier structure is shape-stable within a tolerance range without external force exerted by a user and deformable under external force exerted by the user, in order to change a distance between two adjacently arranged electrodes and/or to area-comprehensively adapt to face and head structures. The carrier structure is configured to position at least a part of the electrode arrangement on the face surface and behind the ear.

A biopotential measurement device including a plurality of sensing electrodes and a controller is described. The plurality of sensing electrodes is adapted to measure one or more biopotential signals when the plurality of sensing electrodes is worn. The controller is coupled to the plurality of sensing electrodes and memory that stores instructions that when executed by the controller cause the biopotential measurement device to perform operations. The operations include collecting electrical signals over a first time period, each of the electrical signals associated with at least one of the plurality of sensing electrodes, mixing the electrical signals to generate a biopotential dataset that includes permutations of the electrical signals, and identifying a target biopotential signal included in the one or more biopotential signals based, at least in part, on the biopotential dataset.